What is the kinetic energy of a 23 kg dog that is running at a speed of 7.4 m/s (about 17 mi/h)?
K.E. = 1/2 mv^2
To calculate the kinetic energy of an object, you need two variables: the mass of the object (in kilograms) and its velocity (in meters per second).
The formula for kinetic energy is:
Kinetic Energy = 0.5 * mass * velocity^2
In this case, you have the mass of the dog (23 kg) and its velocity (7.4 m/s). Now we can plug these values into the formula to calculate the kinetic energy.
1. Square the velocity: 7.4^2 = 54.76 m/s^2
2. Multiply the result by half of the mass: 0.5 * 23 * 54.76 = 628.988 Joules (J)
Therefore, the kinetic energy of a 23 kg dog running at a speed of 7.4 m/s is approximately 628.988 Joules (J).